Bojangles: ORC Rating

GPH

712.4

OSN

689.4

LOA

9.43 m

Displacement

3900 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5664

Medium

0.7801

High

0.9031

Triple Offshore

Low

0.7313

Medium

0.9537

High

1.067

Boat Specifications

Dimensions

Length overall: 9.43 m
Beam: 3.1 m
Draft: 1.51 m
Displacement: 3900 kg
Crew weight: 478 kg
Wetted surface: 20.54 m²

Sails

Mainsail: 26.15 m²
Genoa: 22.77 m²
Spinnaker: 51.15 m²
Asymmetric spinnaker: 0 m²

Design

Type: Dehler 31
Builder: Dehler
Designer: vd Stadt & prtnrs
Year built: 1985

Performance data

Polar CSV

Each row is TWS followed by TWA and boat-speed pairs. Paste it directly into Offwind or compatible navigation software.

6,44.4,4.170908,52,4.6,60,4.86,75,5.03,90,4.97,110,4.98,120,4.81,135,4.3,146.2,3.790685,150,3.63
8,42.5,4.909957,52,5.44,60,5.69,75,5.86,90,5.92,110,5.96,120,5.81,135,5.3,150,4.66,150.9,4.612186
10,41,5.406053,52,5.98,60,6.16,75,6.3,90,6.43,110,6.48,120,6.39,135,6.07,150,5.51,154.6,5.313642
12,39.6,5.723458,52,6.28,60,6.42,75,6.56,90,6.72,110,6.8,120,6.73,135,6.5,150,6.15,161.9,5.754771
14,38.6,5.873167,52,6.44,60,6.59,75,6.75,90,6.91,110,7.08,120,7.01,135,6.81,150,6.54,175.4,6.059518
16,38.3,5.925255,52,6.52,60,6.69,75,6.9,90,7.02,110,7.36,120,7.32,135,7.1,150,6.82,179,6.440981
20,38.7,5.958251,52,6.57,60,6.76,75,7.07,90,7.31,110,7.87,120,8.01,135,7.8,150,7.4,179,6.991065
24,40.3,5.939672,52,6.54,60,6.76,75,7.14,90,7.54,110,8.18,120,8.69,135,8.7,150,8.15,178.6,7.562257

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.6	4.86	5.03	4.97	4.98	4.81	4.3	3.63
8	5.44	5.69	5.86	5.92	5.96	5.81	5.3	4.66
10	5.98	6.16	6.3	6.43	6.48	6.39	6.07	5.51
12	6.28	6.42	6.56	6.72	6.8	6.73	6.5	6.15
14	6.44	6.59	6.75	6.91	7.08	7.01	6.81	6.54
16	6.52	6.69	6.9	7.02	7.36	7.32	7.1	6.82
20	6.57	6.76	7.07	7.31	7.87	8.01	7.8	7.4
24	6.54	6.76	7.14	7.54	8.18	8.69	8.7	8.15

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.4°	2.98	146.2°	3.15
8	42.5°	3.62	150.9°	4.03
10	41°	4.08	154.6°	4.8
12	39.6°	4.41	161.9°	5.47
14	38.6°	4.59	175.4°	6.04
16	38.3°	4.65	179°	6.44
20	38.7°	4.65	179°	6.99
24	40.3°	4.53	178.6°	7.56

VPP POLAR · BOAT SPEED BY TWAKT

TRUE WIND ANGLE —

READ AT ANGLE

Hover or tap the chart, or use the slider, to read boat speeds.

True wind speed 6 kt8 kt10 kt12 kt14 kt16 kt20 kt24 kt

Data table

Boat speed by true wind angle and true wind speed
TWA	Boat speed in 6 kt (kt)	Boat speed in 8 kt (kt)	Boat speed in 10 kt (kt)	Boat speed in 12 kt (kt)	Boat speed in 14 kt (kt)	Boat speed in 16 kt (kt)	Boat speed in 20 kt (kt)	Boat speed in 24 kt (kt)
0°	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
52°	4.60	5.44	5.98	6.28	6.44	6.52	6.57	6.54
60°	4.86	5.69	6.16	6.42	6.59	6.69	6.76	6.76
75°	5.03	5.86	6.30	6.56	6.75	6.90	7.07	7.14
90°	4.97	5.92	6.43	6.72	6.91	7.02	7.31	7.54
110°	4.98	5.96	6.48	6.80	7.08	7.36	7.87	8.18
120°	4.81	5.81	6.39	6.73	7.01	7.32	8.01	8.69
135°	4.30	5.30	6.07	6.50	6.81	7.10	7.80	8.70
150°	3.63	4.66	5.51	6.15	6.54	6.82	7.40	8.15